Dumping-truck body



April 6 192 I Y 1,579,675

D. C, THOMAS DUMPING TRUCK BODY Filed Jan. 21, 1924 H Z 53 A DoctorCorie T how INVENTOR ATTORNEY WITNESS:

Patented Apr. 6, I

5 J nocroac; mom or n em a, NoR'rncARoLInli.

' DUMPIN'G-TRITCI; BODY.

i arem fi1e'd'January"2 1*, 1924. ,Serial no. 6893600. I

To all whom it may] concern: a

Be it known that I, DOCTOR C. InoMAs, a citizen of the UnitedStates,-res1d ng at Aberdeen, in the county of Moore and State inconnection with the chassisjof an auto mobile, the body-being" 'somounted that t 'will tilt rearwardly' for discharging its conof NorthCarolina, have invented new and useful Improvements in Dumping-TruckBodies, of which :the following is a specification. '1 I This inventionrelates to vehicles and has for its object the-' provisionof a noveldumping truck body designed particularly for use tents upondisengagement of holding means. 'Animportant-and- 'moreisp'e' crfic ob]ect 1s 1 the provision ,of adumping truck body equipped" with novelmeans for normally holding the body in its operative POS1t10I1, levermeans being provided for releasingthe holding means, furthermore of sucha nature that the'body I movement thereof, a feature which preventsaccidental tripping of the body in case the the holding means being willbe automatically latched when it is simply returned to normal positionafter dumping. r r 2 Another object is the provision ofa release. leverwhich is operated by forward lever strikes against something while I thevehicle is traveling.

An additional objectisthe provision of afdevice of this character whichwill be simple and inexpensive in'manufacture, easy to operate, positiveis action, eflicient and durable in 'SGI'VICG andQa general improve--ment in'the art;

With the above and other objects and advantages in view the inventionconsists in 40 the details of construction to be hereinafter more fullydescribed and claimed and illustrated in the accompanying drawings, in

which a a Figure 1 is a side elevation of the device showing it mountedupon an automobile chassis, r

Figure 2'is a vertical section showing the body in dumped position, I

portion,

Figure 3 is a plan view of the forward The remaining figures are detailviews. Referring more particularly to the drawings the numeral 10designates 31118 of any suitable construction designed to be mountedupon the chassis A of a motor vehicle, any

desired means being provided for effecting this mounting; Secureduponthetopof the rear'jends of the sills are bearings -;11

ford a transverse shaft 12 which passes through bearings 13, on theundersides of longitudinal bars 1 1 which form the base of theniovableibody. Themovable body is here represented-as equipped at'itsforward end with across bar l5-and connected at various points bytransverse members 16 which arein turn connectedbyuppe'r lon ia.

'tudinal bars 17;. 'Any type of body may used, depending upon the natureof the Work to be-done, and the particularstyle shown is provided at itssides with socketsv 18 for the reception of 'stakesnot shown,: though itshould be-understood that there is *no limitation: whatever in thisrespect.

Journaled" transversely through the I sills 10 immediately back of thecross bar 15 is a rock shaft 19 formed with upwardly extending latcharms 20 which have angular sirable that the cross bar 15 be shod withmetallic wear plates 23 at the points engagedby the-latch hooks, thesewear plates so v extending downwardly beyond the bottom a surface of thecross bar 15 and having inclined surfaces 24 co-operating with the inflclined surfaces 22 of the hooks for moving the. hooksout of the way andpermitting. latching when the body is returned to normal position afterdumping. I One end of the rock sh'aft is formed with a depending arm 25to which is connected, by a pivot 26, a forwardly extending link 27which is in turn pivoted at 28 on an I actuating lever 29 suitablypivoted on the adjacent sill 10 asshownat 30. Connected by the pivot 26at the juncture of the arm 25 andv link 27 is a rearwardlyextendingplate member 31 to which is connectedi'one V I end of a coilspring 32 which has its other end suitably connected with the sill. f rAs the spring pulling upon the arm 25 urges the hooks orlatchesforwardly, it is man apparent that some means must be provided forlimiting their forwardmovement and this is taken care of by providing anelongated plate 33 which issecured on the top of the crossbar 15 andwhich ha'sits rear:

edge formed near its ends with upstanding lugs 84 against which theshank portions of the hooks or latches abut.

Ordinarily the movable body is located immediately on top of the sills,the underside of the front crossmember 15 bearing upon the sills and theshoulders 21 of the hooks or latches engaging above the cross member 15.To release the body, it is necessary to pull forwardly upon the lever 29so as to rock theshaft 1-9 to a sufficient extent that the hooks orlatches will be moved rearwardly out of obstructing relation to thecross bar 15. The body may then tiltfor dumping the load. lVhenreturning the body to normal position it is not necessary to move thelever 29 forwardly, for the reason that the inclined surfaces 24- willengage the inclined surfaces 22 of the hooks and exert a Wedging or.camming action which will result in rocking the shaft 19 against theresistance of the spring to a suflicient extent that the cross membermay slip over the hooks and seat itself upon the sills. It will beobserved that as the releasing lever must be moved forwardly to releasethe body, there is no danger of the body being accidentally released bystriking of the lever against some object While the vehicle istraveling.

While I have shown and described the preferred embodiment of myinvention it is of course to be understood'that I reserve the right tomake such changes in the form, construction and arrangement of parts aswill not depart from the spirit of the invention or the scope of thesubjoined claim.

Having thus described my invention claim: 7 V

In a dumping truck, the combinationof a supporting frame Work, a dumpbody pivoted thereon to swing vertically, and latch mechanism comprisingvertical latch carrying arms, a horizontal rock shaft carrying saidarms, a horizontally movable operating lever pivoted to the supportingframe, a link extending rearwardly from said operating lever andconnected with said rock shaft, and spring device connected with saidrock shaft and extending rearward therefrom and connected-with thesupporting frame.

Intestin'iony whereof I affix my signature.

DOCTOR c. THOMAS.

